Method and device for correcting guiding errors in a coordinate measuring machine

US7142999B2 · kind B2 · utility

Assignee

• Carl Zeiss Industrielle Messtechnik GmbH · DE

Inventors

• Gunter Grupp · Böhmenkirch, DE
• Andreas Fuchs · Aalen, DE
• Walter Jenisch · Heidenheim, DE
• Ralf Bernhardt · Aalen, DE
• Harald Schmid · Bietigheim-Bissingen, DE
• Ulrich Staaden · Aalen, DE

Key dates

• Filing date: Sep 20, 2004
• Grant date: Nov 28, 2006
• Expiry date: Sep 20, 2024

Classification

• Technology area (CPC G): Physics
• CPC primary: G01B21/045
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for correcting errors in a coordinate measuring machine having a measuring head which is adapted to move in at least two different spatial directions. Measuring scales and measuring lines are assigned to each spatial direction. The measuring lines of different spatial directions intersect, and correction values are determined along the measuring lines at predetermined values of the scales in order to correct for elastic and/or geometric errors of the scales and/or of the guiding mechanism for moving the measuring head. According to one aspect of the invention, the correction values determined along a measuring line of a first spatial direction are modified such that the modified correction value of this measuring line assumes a predetermined value at the point of intersection with a first measuring line of a second spatial direction.